6th Grade
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| Flap 2 | |
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| physics | the scientific study of the interaction of matter and energy |
| force | any push or pull on an object |
| Newton | the standard international unit as a measure of force |
| gravity | the force that pulls objects toward each other(ex: Earth's gravity pulls objects to the ground.) |
| matter | anything that has mass and takes up space |
| mass | the amount of matter in an object |
| weight | a measure of the force of gravity on an object |
| motion | the process of changing position or place relative to another object (movement) |
| inertia | an object at rest tends to stay at rest; an object in motion tends to stay in motion |
| balanced | When opposite forces on an object are equal, the forces are ___________ |
| unbalanced | When forces acting on an object are uneven they are ______________. |
| Balanced forces result in _____________. | no motion |
| Unbalanced forces result in ____________. | motion |
| An object is in motion when its distance from another object (the reference point) is ___________. | changing |
| reference point | A place or object used for comparison to determine if something is in motion. |
| The basic SI unit of length is the _______. | meter |
| There are ________ centimeters in a meter. | 100 |
| speed | the distance an object travels in one unit of time, such as miles per hour |
| Calculate speed by dividing ___________ by ____________ | distance; time |
| velocity | speed in a given direction; such as 25 km/h eastward |
| The vertical line (up and down) on a graph is the _______ axis. | y |
| The horizontal (side to side) line on a graph is the ________ axis. | x |
| On a graph showing motion, the y axis represents ___________. | distance |
| On a graph showing motion, the x axis represents ____ | time |
| On a graph showing motion, a flat line means ______ motion | no
[See textbook p. 94] |
| net force | the overall force acting on an object |
| Force is measured by a ___________. | spring scale |
| friction | friction is the force that one substance exerts on another when the two rub against each other. |
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